So I was having some algae problems for awhile so I got a snail then he wasn't doing anything about it for a while so I cleaned the algae and tank out pretty good a couple weeks ago except for one spot on the aquariums side. Well he cleaned it off and now there hasn't been any noticeable algae growth on the tank for a couple weeks should I worry about him starving? It's a 3-4 gallon tank with a Betta and a snail.